Rory McIlroy says tests show no new injury to his backPONTE VEDRA BEACH, Fla. (AP) Rory McIlroy says tests indicate no new injury to his back, only what he described as a ''low-grade response'' to his rib injury SI Staff | May 15, 2017Rory McIlroy says tests show no new injury to his back / Published May 15, 2017SI STAFF